Parts for MDB7749SAQ0 — Whirlpool Dishwasher
We found 24 parts confirmed to fit the Whirlpool Dishwasher MDB7749SAQ0.
Same parts list as MDB7749SAB0 (Whirlpool Dishwasher). MDB7749SAQ0 shares an identical confirmed parts list with MDB7749SAB0 (Whirlpool Dishwasher). That page is the canonical version of this parts list — use it if you want the primary reference, or stay here since the list below is exactly the same for MDB7749SAQ0.
Compatibility table
| Part # | Part | Also fits | Reference price |
|---|---|---|---|
| W10811167 | Control Panel - Bisque | 28 models | $198.08 |
| W10339563 | Dishwasher Thermostat | 29 models | — |
| W10811164 | Control Panel - Black | 30 models | $191.80 |
| W10811166 | Control Panel and Touchpad - White | 30 models | $196.05 |
| WPW10323189 | Dishwasher Dishrack Rail Stop | 30 models | $25.75 |
| WPW10401502 | Dishwasher Wire Harness | 30 models | $19.30 |
| W10486463 | Electric Control Board | 30 models | $176.17 |
| WPW10329510 | Handle | 30 models | $68.86 |
| WPW10401479 | Handle | 30 models | $68.86 |
| W10343322 | Handle Pocket | 30 models | $70.95 |
| WPW10401481 | POCKET-HDL | 30 models | $68.86 |
| WPW10419108 | Panel | 30 models | $154.79 |
| WPW10451914 | UPPER WHEEL ADJUSTER | 30 models | $48.45 |
| W10811169 | Control Board with Touchpad - Stainless | 47 models | $168.54–$230.12 |
| W10195623 | Dishwasher Dishrack Slide Rail | 48 models | — |
| W10195039 | Dishwasher Float Switch | 358 models | — |
| W10195750 | Dishwasher Drain Hose | 366 models | — |
| W10329322 | Dishwasher Heater | 445 models | — |
| W10195416 | Lower Dishrack Wheel | 1,016 models | $33.69 |
| W10300924 | Dishwasher Door Seal | 1,343 models | — |
| 8558995 | Dishwasher Drain Pump | 1,591 models | — |
| W10158291 | Dishwasher Door Balance Link | 2,030 models | — |
| 4396277 | BARRIER | 4,961 models | $22.17–$27.36 |
| 8269144 | Dishwasher Drain Hose | 5,275 models | — |
Prices shown are an informational reference range only, not an offer or an Amazon price — RepairKitHub does not sell parts directly. Each part links to an Amazon search so you can compare current listings yourself.
Common failure areas on this model
The confirmed parts above group into a handful of failure areas. Here is what each points to and how to check it before you order anything.
Storage, trim and cosmetic hardware
Symptom: A cracked shelf, broken door bin, worn hinge, or missing trim piece -- cosmetic and storage wear rather than a functional breakdown.
Check: Match the physical dimensions and mounting tabs of the old part before ordering; these pieces are often model-specific even between visually similar models.
Parts in this group on MDB7749SAQ0: W10811167 (Control Panel - Bisque), W10811164 (Control Panel - Black), W10811166 (Control Panel and Touchpad - White), WPW10329510 (Handle), WPW10401479 (Handle), W10343322 (Handle Pocket), WPW10419108 (Panel).
Heat control (thermostats, fuses, heating element)
Symptom: Dishes don't dry at the end of the cycle, or a heated-dry setting doesn't seem to do anything.
Check: With the dishwasher unplugged, check continuity across the heating element or thermostat with a multimeter -- no continuity means it has failed.
Parts in this group on MDB7749SAQ0: W10339563 (Dishwasher Thermostat).
Dishrack hardware (rollers, wheels and tines)
Symptom: A dish rack that binds, drags, or comes off its rail track when you pull it in or out, or a rack with a cracked, loose, or missing wheel or tine.
Check: Pull the rack fully out and check each wheel or roller for a crack or a missing axle pin, and check that tines aren't snapped off or pushed out of alignment along the row.
Parts in this group on MDB7749SAQ0: WPW10323189 (Dishwasher Dishrack Rail Stop), W10195623 (Dishwasher Dishrack Slide Rail), W10195416 (Lower Dishrack Wheel).
Controls, timers and wiring
Symptom: A cycle that stops partway through, an error code or blinking light, or the unit not starting at all.
Check: Look for burn marks or a burnt smell near the board or terminals, and check whether buttons and knobs respond -- a unit that powers on but won't cycle often traces back to this group.
Parts in this group on MDB7749SAQ0: WPW10401502 (Dishwasher Wire Harness), W10486463 (Electric Control Board), W10811169 (Control Board with Touchpad - Stainless), W10195039 (Dishwasher Float Switch).
General hardware and mounting parts
Symptom: A small mechanical or mounting part has failed, cracked, or gone missing.
Check: Compare the physical shape and mounting points to the original piece, and confirm the exact part number against your model plate before ordering.
Parts in this group on MDB7749SAQ0: WPW10401481 (POCKET-HDL), WPW10451914 (UPPER WHEEL ADJUSTER), W10329322 (Dishwasher Heater), W10158291 (Dishwasher Door Balance Link), 4396277 (BARRIER).
Water inlet and drainage
Symptom: The dishwasher won't fill, or dishes come out with standing water still in the tub bottom after the cycle ends.
Check: Check the inlet valve's screen filter for sediment, and check the drain pump and drain hose for a clog or a jammed object -- a piece of broken glass or a bottle cap is a common culprit.
Parts in this group on MDB7749SAQ0: W10195750 (Dishwasher Drain Hose), 8558995 (Dishwasher Drain Pump), 8269144 (Dishwasher Drain Hose).
Door and drum seals
Symptom: Water leaking out from around the door during or after a cycle.
Check: Check the door gasket for tears, flattening, or a section pulled loose from its channel, and confirm it seats evenly all the way around when the door is closed.
Parts in this group on MDB7749SAQ0: W10300924 (Dishwasher Door Seal).
Before you buy
Match MDB7749SAQ0 exactly against the model and serial plate on the appliance itself before ordering anything — a single mismatched character can point to a different production run with different parts. Then check the part number printed or stamped on the part you are replacing against the part numbers in the table above; the printed number is the most reliable way to confirm fitment when a model has gone through multiple production runs. RepairKitHub does not sell parts directly — every part link above routes to an Amazon search for that part number so you can compare current listings and sellers yourself.
How to confirm this is your model
On most dishwashers, the model and serial plate sits on the edge of the door or the tub rim. Match every character exactly, including letters and dashes at the end — appliance model numbers often have similar prefixes but different suffixes for different production runs.
Neighbouring Whirlpool Dishwasher models
These model numbers sort next to this one in the catalog and are usually the same product family.
Still not sure?
Use the model lookup tool to search by model or part number, or start from the symptom your appliance is showing.